What does your preview card look like?
Most websites have broken preview cards on Twitter, LinkedIn, Slack and Facebook — missing og:image, wrong dimensions, title too long, description truncated. Paste a URL and see exactly what is wrong, with a real preview-card render of how your link actually looks when shared. Pair it with the Schema Inspector for the AI-discovery side.
Inspection Results
[ SOCIAL CARD COVERAGE ]
[ PREVIEW CARD ]
Approximate Twitter / LinkedIn / Slack rendering
[ TAGS FOUND ]
[ QUALITY CHECKS ]
[ MISSING TAGS ]
[ RECOMMENDATIONS ]
[ NEXT STEPS ]
- Add or fix the high-priority tags listed above. The minimum viable set is
og:title,og:description,og:image(1200x630 PNG), andtwitter:cardset tosummary_large_image. - Validate live previews with Facebook's Sharing Debugger, LinkedIn's Post Inspector, and X's Card Validator — cached cards may need a force refresh.
- Run the Schema Inspector next — OpenGraph handles humans, JSON-LD handles AI and search.
- Generate a starter llms.txt file so AI clients can discover your most important pages.
How it works
You give us a URL. We fetch the page on our server using a hardened fetcher that rejects private IPs, loopback addresses, and redirect chains pointed at internal networks. Same SSRF posture as the AI Readiness Checker and Schema Inspector — the inspector cannot be tricked into scanning your internal admin panel.
From the returned HTML we extract every <meta property="og:*"> and <meta name="twitter:*"> tag, plus the <title> and <meta name="description"> as fallbacks. If you have an og:image, we issue a second hardened HEAD request to verify the asset is publicly reachable — broken og:image URLs are one of the most common reasons preview cards collapse to a plain link.
The score is opinionated. The single biggest failure mode is no og:image — that is worth 20 points by itself. Twitter Card tags add another 30. We add quality bonuses for declared image dimensions, a reachable og:image, and title/description lengths inside platform truncation limits. The total runs from 0 to 100 across five levels: broken, weak, partial, solid, complete.
This is a starting point, not a finished audit. Adding the tags is necessary but not sufficient — the underlying image still has to be a 1200x630 PNG that earns the click. Use this tool to find gaps, then design the card that fills them.
Scores are heuristic and based on public meta tags scanned at request time. Not a substitute for testing live shares on each social platform.